Ideas

Ideas

IDEAS is a place for people who like to think. If you value deep conversation and unexpected reveals, this show is for you. From the roots and rise of authoritarianism to near-death experiences to the history of toilets, no topic is off-limits. Hosted by Nahlah Ayed, we’re home to immersive documentaries and fascinating interviews with some of the most consequential thinkers of our time.


With an award-winning team, our podcast has proud roots in its 60-year history with CBC Radio, exploring the IDEAS that make us who we are. 


New episodes drop Monday through Friday at 5pm ET.

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Resumen del episodio

This episode explores the profound physical, biological, and evolutionary impact of the moon on Earth, from its origin via the giant-impact hypothesis to its role in stabilizing Earth's climate and driving life from water to land. The discussion traces how the moon's gravitational influence shaped human civilization through lunar calendars and timekeeping. Furthermore, the episode examines the evolving human perception of the moon, moving from ancient mythological views to the scientific revolutions sparked by Galileo and Copernicus. Through accounts of the Apollo missions and astronaut Charlie Duke, the narrative explores how lunar exploration transformed the moon from a mysterious orb into a physical world, ultimately redirecting our reverence toward the fragility and interconnectedness of Earth itself.

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And out of that, the moon forms and out of that, the earth reforms. So we're in essence on the second earth, the one that has the moon.

00:05:16 · The speaker explains the scientific theory that a massive collision between Earth and a Mars-sized planet named Theia created our current moon and reshaped the Earth.

But the moon stabilizes Earth's journey. So our climate has stayed pretty stable over millennia, which is what has allowed complex life to flourish here.

00:07:46 · The speaker describes how the moon prevents Earth from wobbling excessively on its axis, maintaining a stable environment for life.

I think the moon is really one of the primary ways that humans begin to orient ourselves in time.

00:20:07 · The speaker highlights how lunar cycles provided early humans with a reliable system for planning and survival.

And he's one of the first people to describe the moon as a place, as a world.

00:28:32 · The speaker describes how Galileo's telescopic observations changed the human understanding of the moon from a celestial disc to a physical landscape.

we came to the moon, but the journey was really to the Earth.

00:50:36 · The speaker reflects on how exploring the lunar surface ultimately led to a deeper discovery and appreciation of our own planet.

Episodios

2092-

How the Moon shaped humanity — and defined life on Earth

This episode explores the profound physical, biological, and evolutionary impact of the moon on Earth, from its origin via the giant-impact hypothesis to its role in stabilizing Earth's climate and driving life from water to land. The discussion traces how the moon's gravitational influence shaped human civilization through lunar calendars and timekeeping. Furthermore, the episode examines the evolving human perception of the moon, moving from ancient mythological views to the scientific revolutions sparked by Galileo and Copernicus. Through accounts of the Apollo missions and astronaut Charlie Duke, the narrative explores how lunar exploration transformed the moon from a mysterious orb into a physical world, ultimately redirecting our reverence toward the fragility and interconnectedness of Earth itself.

19 oct. 2026
2091-

Tech billionaires are betting on a coming Apocalypse

Host Nala Ayyad interviews authors Astra Taylor and Naomi Klein about their book, 'End Times Fascism and the Fight for a Living World.' The discussion explores how modern fascism differs from 20th-century versions by embracing an 'Armageddon complex' driven by tech billionaires, religious extremists, and ethno-nationalists. The conversation examines the rise of 'tech fascism,' where elites leverage AI and ideologies of transcendence to rationalize environmental destruction. The authors contrast this with the concept of 'doikheit' or 'hereness,' advocating for a ferocious defense of our existing communities, bodies, and planet through messy, imperfect collaborations.

16 oct. 2026
2090-

Are Alberta’s separatists guilty of 'moral treason'?

In this episode of Ideas, host Nala Ayyad interviews security expert Patrick Lennox about the potential for Alberta separatism and its links to foreign interference. Lennox argues that the movement's rhetoric aligns with a playbook used by authoritarian regimes like Vladimir Putin's to destabilize liberal democracies through disinformation. Lennox details how far-right ideologies, Christian nationalism, and the influence of American political actors could destabilize Canadian democracy. The discussion explores the risks of democratic erosion, drawing parallels to Brexit and the 'paradox of tolerance,' while weighing the impact of internal discord against external threats on Canada's national unity.

15 oct. 2026
2089-

What draws a new immigrant to Quebec separatism?

This episode explores the diverging visions of sovereignty and identity in Quebec and Wales. It contrasts the inclusive, multicultural approach of Québec solidaire with more identitarian models, illustrated through the personal journey of Aisha Issa, an immigrant who found belonging within the Quebec independence movement. The narrative further examines themes of linguistic suppression and historical rebellion, detailing the impact of the 'Welsh Knot' on the Welsh language and the enduring legacy of figures like Owen Glyndŵr. The discussion concludes by addressing the modern political divides in Wales and the critical importance of the French language to Quebec's cultural survival.

14 oct. 2026
2088-

To become a Cascadian, just look south. Or north.

This episode explores the concept of Cascadia, a geographic and cultural region spanning parts of Canada and the United States that shares more commonalities with its neighbors than with distant national centers. The discussion investigates how geography, such as mountain ranges and coastal corridors, influences human psychology, personality traits, and social dynamics like the 'Seattle Freeze.' The episode also delves into the linguistic landscape of the region, examining phenomena like the 'pre-g merger' and the legacy of Chinook jargon. Ultimately, the conversation examines the tension between bioregional identity shaped by shared landscapes and the national identities reinforced by political borders.

13 oct. 2026